Draft-appliance.



C. LUNDE. DRAFT APPLIANCE. APPLICATION FILED JUNBN, 1909.

Patented Aug. 31, 1909.

@Witwe/ooe o asa-sai.

-anr -rnien CHARLES LUNDE, or nan'snannrown, Iowa, AsszeNoa or erinnern 'To an'ron sen-nin, or'

nnnsnannrowiv, iowa.

DRAFT arrnrnncn. l

Application led June 17, 1909. Serial No. 502,764.

'To allwhom it may concern:

Be it known that I, CHARLES LUNDn, citivzen of the United States, residing at Mar-` y ready connection to a traction engine, and

embodying such a construction that a p lu rality of plows may be easily connected with the engine and arranged advantageously and` in such. manner that in the event of one of' the plows striking a large stone 'or other obstruction in its path, the plows will be autoinatically released and damage to the plow that encounters the obstruction will be precluded.

With the tore oing in view, the invention y will be fully un erstood from the following description and claims when the same are read in connection with Athe drawings, ac-v companying and forming part'of this specification, in which: y

yFigure l is a plan view showing the manner of attaching my novel appliance to the rear end of a traction engine and also showing the manner inA which chains designed to serve as draft cables for plows are looped over the cable pins of the appliance. Fig. 2 is a longitudinal vertical section, taken in the plane indicated by the line 2*-2 of Fig. l, and showing by dotted lines the position the rock-shaft assumes to release the 'plow cables or chains when theweak pin hereinafter referred to is broken by the excessive draft yincidental 'to a plow bringing up against a large stone or other obstruction.

. Flg. 3 is lan enlarged detail section 4taken in parts in all of the views of the i ferring to which:

.the plane indicated by the line 3 3 of Fig.

1 and showing the manner inwhich-the cable pins are arranged in the roclcshaft and also showing the means for 'adjustablyfixing the said pins with respect to the rock-shaft so as to permit ofthe plow connections beinfr positioned to the best advantage. `v

imilar letters designate corresponding draw/ings, re-

A is the rear portion of a traction engine. B B arecables, preferably in the form of looped devices as shown, designed to be conplows (not shown) in the conventional inanner or in any other manner consonant with the purposeof my invention.v

Fixed with respect to and extendingrearwardly from` the traction engine A are Specification of Letters :Patent A Pagnt-,ed' Aug;y 319 .190%

nected with and extend forwardly from"v parallel Atraine bars C which are connected ytogether at an' intermediate point` o'their length through the medium of transverse bars D and E, the bar 'D being disposed horizontally, and the bar vertically as shown. The bars D and E are xed with respect to the side `bars Cin the manner lshown or in any other suitable manner, and

the bars C are provided in rear of the trans` verse bar E, with transversely disposed journal bearings F.

On its rear side, the transverse frame bar E is provided with a olevis Gr, and removably arranged in andextending transversely through the said clevis is a weak pin II-- e., a pin made of wood or other comparatively weak material. At this point I would haveit understood that with the exception of the Weak pin H, the appliance in the pre-4 ferred embodiment of the invention is made of metal.

I is the rock-shaft ofthe appliance, hav- 'ing end trunnions J journal-led in the bearings Il of the Alraine bars C. In its side that is normally foremost the vrock-shaft I is pro.- vided with a longitudinal groove K, of dovetail form in cross-section, and in the said groove are arranged the correspondingly shaped Shanks of the cable pins L. It will also ,be seen by reference to Fig. 3 that the shank of each pin L is provided with a set Screw M for engagingthe rock-shaft I, and

.that therefore'each pini may be adjnstably fixed to the rockfshat't invarious positions .as occasion demands.

Carried by and extendin forwardly from the rock-shaft lI is an arm I) to normally rest in the bifurcation of the clevis G, and in thesaid arm P is a transverse aperture \in which normally rests the weak pin H.

In the practical use of my novel appliance the cables or chains B are looped over the ins L in the manner shown, andit will here lie noted thateither-one or a plurality .of cables may belooped over each pinA according to the number of plows that it is desired to hitch to the traction engine. By reason of the placing of the cables or cliains on the that is adapted pins L in the manner described, ill will be manifest l'hat lthe plows will be drawn ahrough the. earlih in orderly fashion so long as the plows do not encounter material obstruclions In the evenl,r however, of any one of the plows bringing up against a large Stone or other practically in'nnovable oli- Striiction, the increased draft will operaie to break the weak pin H and release the arni P of rock-shaft I, whereupon the said aliafl l will turn about itsaxis until llie pins L a rc directed rearwardly, when the cables or chaina B will slip fill llie said pins, and dainage lo lhe olislrncllcd plow or pfpws will lie ln addition lo the practical advantages herein beiore ascribed to my novel appliance, ily will be noted that lhe saine is simple,

compact and inexpensive in construction, and is Well adapted to withstand the expo- `vl'sure to which draft appliances are ordinarily 1. ln a draft applianceJ the combination prising side bars having of a rock-shaft having a longitudinal groove in an appliance l'or llie purpose die' scribed,- llie coniliinalion willi a` lraine conijonrnal lieariiigr#j and a fro e bar coi'iiieclin; r said Hide hare; in fi'oiil,v of said hearings, and having' on ils war side a clevie made np ol' aprillii'ed porliom separaled by an inlerveningl spare; nl' a rer-lr shall jnarnalvd in said hearings and haring' a longitudinal 1i-now; ol' dowelail l'orni in eross-snclion, and also havingV an apra-lured ai'in, a weak pin exleifidiiiglf lliroilifl: llnelevel porlioins and :raid ai'ni7 piml haring' loi'elail shank poi'liony arranged in vf-:aid groovel and sell screws rarried by .aid shank poi-lions.

ln leslinioniv wherrnl' l have liei'ennlo nel, iiiy hand in pri-,sence ol' lwo enlisei'iliiiig wil-- nesses.

llfill/ES LUNl'lC,

litnessesz y JOHN Kani' Manx', AN'roN Soni-1in,

lill

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